baber/WOPTO huggingface dataset:
Patent CA-2229671-A1 (CA)
Title: Direct contact water heater with dual water heating chambers
Inventor: BRUNET STEPHANE
IPC: F24H1/10
Filed: 1998-02-16
Abstract: A dual direct contact water heater is described and consists of a heater housing having two sections, each section having a water reservoir. One section provides hot water at a high temperature and provides a source of heat exchange to heat an external source of water for commercial use. A burner is provided in the first section to provide the heat source to a packing through which water percolates.      The source of water for the first section is the outlet of a heat exchanger whereby water from the reservoir is recirculated in a closed circuit in the first section. Hot gases rising from the first section is directed to a second section which also includes a second packing and a reservoir and it also has a closed loop whereby a second source of hot water, at a lower temperature, is utilized in a closed loop and in heat exchange with a second external source to produce domestic hot water or without heat exchanger to produce hot water for various processes. The fumes at the exhaust port of the second section are cooled considerably whereby the total efficiency of the water heater is greatly increased.
Patent CA-2230626-A1 (CA)
Title: A stripe pattern matching system
Inventor: TAKAHASHI YOSHIHIDE
IPC: G06K9/00
Filed: 1998-02-26
Abstract: To provide a stripe pattern  system enabling to verify minutia correspondence between a searching stripe pattern and a filed stripe pattern independent of position or direction of the searching strip pattern, correspondence value between them is evaluated by comparing their distances, directions or relations to their each neighboring minutiae by a pairing examination means (16). The most appropriate rotation angle and the most appropriate shifting coordinates for adjusting the searching stripe pattern to the filed stripe pattern is obtained by selecting a most appropriate axial candidate giving the most concentrated coordinate deviations referring to deviation distributions of correspondence values accumulated on a deviation plane memory (18) by applying each axial candidate as the coordinate adjustment reference. Therefore, the most appropriate coordinate adjustment can be performed even when either or both of absolute direction and position cannot be specified, in the invention.
Patent CA-2232506-A1 (CA)
Inventor: WILLIAMS DAVID
IPC: C12N15/00
Filed: 1996-09-19
Abstract: The invention concerns novel compounds having defined structural formulae and methods of mutating a nucleic acid sequence, the method comprising replicating a template sequence in the presence of a nucleoside triphosphate analogue in accordance with the invention, so as to form non-identical copies of the template sequence comprising one or more nucleoside triphosphate analogue residues, and a kit for use in performing the method of the invention.
Patent CA-2233274-A1 (CA)
Title: Methods and compositions for controlling biofouling using oxime esters
Inventor: BRYANT STEPHEN D
IPC: A01N37/16
Filed: 1996-09-27
Abstract: The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one oxime ester to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one oxime ester to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the bacteria. The oxime ester used in the method of the invention has formula (I). The present invention also relates to compositions containing oxime esters and useable in the above methods. The compositions comprise at least one oxime ester in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.
Patent CA-2235919-A1 (CA)
Inventor: DUNN RICHARD L
IPC: A61K47/14
Filed: 1996-10-25
Abstract: The invention relates to a method and composition for forming an implant in situ within a body using non-polymeric materials, and the use of such implants as medical devices and drug delivery systems. The composition can be applied to an animal to treat periodontal disease or other tissue defect, enhance compatibility and performance of an implantable article, and deliver a biologically active agent.
Patent CA-2236124-A1 (CA)
Inventor: TAKAISHI KAZUYUKI
IPC: C22B3/32
Filed: 1998-04-29
Abstract: Provided is a method of efficiently producing a high-purity nickel sulfate solution through solvent extraction using an organic acid extractant.  In the method, nickel is extracted into the extractant while removing sodium, ammonium and other impurities from the resulting, nickel-containing organic phase.      The method comprises extracting nickel from a crude nickel sulfate solution into an organic acid extractant within a pH range falling between 6.0 and 7.0 while the nickel content of the organic phase is kept to be from 0.5 to 1.7 times the stoichiometric nickel loading capacity of the extractant, and then scrubbing the nickel-loaded, organic phase followed by stripping it with sulfuric acid.
Patent CA-2238379-A1 (CA)
Inventor: TS O PAUL O P
IPC: A61K47/48
Filed: 1996-11-22
Abstract: Conjugués de néoglycopeptides et d'oligodésoxynucléosides de méthylphosphonate et composés apparentés servant à effectuer l'apport spécifique aux tissus dans des cellules d'analogues d'oligodésoxynucléosides non ioniques et biologiquement stables.
Patent CA-2240617-A1 (CA)
Title: Cast explosive composition with microballoons
Inventor: HALES RICHARD H
IPC: C06B47/14
Filed: 1998-07-08
Abstract: The invention comprises a cap-sensitive, cast, solid explosive composition usable as a booster or primer and as a seismic explosive composition. The cast, solid explosive composition contains dispersed microballoons which impart important and surprising advantages.
Patent CA-2241214-A1 (CA)
Title: Polyurethane pressure-sensitive adhesives
Inventor: NATHAN ARUNA
IPC: C08F290/06
Filed: 1996-12-19
Abstract: Methods for producing poly[urethane-(meth)acrylate]-based adhesives in which an isocyanate-terminated prepolymer is reacted to convert the isocyanate terminal groups into groups capable of cross-linking with each other, excess isocyanate groups are quenched with an isocyanate group quenching compound and the resulting prepolymer is then irradiated or heated to form the polyurethane-based adhesives, and adhesives produced thereby. Alternatively, a hydroxyl-terminated prepolymer is reacted with a reagent having isocyanate and methacrylate groups to form a prepolymer which is then irradiated or heated.
Patent CA-2242062-A1 (CA)
Inventor: ARENDS RONALD W
IPC: B05D3/10
Filed: 1998-06-30
Abstract: A clear crystalline faceted substrate is provided with a coating of a colored transparent ink in order to enhance the appearance of the otherwise inexpensive gem stone. The ink is a permanent type ink made from n-propanol, -butanol and diacetone alcohol which is soluble in a solution having a isopropyl alcohol 99% strength. Once the coating has been applied to a substrate such as a cubic zirconia to enhance the appearance of the gem stone, the coating can be removed by use of the solvent. A fresh coating of a different color may then be applied.
Patent CA-2243358-A1 (CA)
Inventor: DURUZ JEAN-JACQUES
IPC: C04B41/50
Filed: 1997-01-09
Abstract: An open-pored porous body (11), in particular a carbon component of an aluminium production cell, which is to be exposed to oxidising conditions or chemical attack at high temperatures is treated to protect the body against oxidation or corrosion at high temperatures by impregnating the surface of the body at about ambient temperature with a hot non-saturated liquid (10). This liquid contains a treating agent at a temperature above the temperature of the body. The concentration of treating agent in the hot liquid is such that when the liquid is cooled, before it reaches the temperature of the body, the liquid saturates and treating agent precipitates. A pressure differential is applied to cause the liquid to impregnate into the surface pores of the body (11) and precipitate a layer of the treating agent from the liquid inside the body by cooling as it impregnates the pores of the body. The treating solution preferably comprises soluble boron compounds and, when the body is exposed to high temperature oxidising conditions, the precipitated layer of the treating agent inside the body forms a protective, vitreous layer in the surface pores which protects the body against oxidation.
Patent CA-2243419-A1 (CA)
Title: Cables with a halogen-free recyclable coating comprising polypropylene and an ethylene copolymer having high elastic recovery
Inventor: ZAOPO ANTONIO
IPC: H01B7/295
Filed: 1998-07-20
Abstract: A cable, in particular for power transmission, for telecommunications or for data transmission, or also combined power/telecommunications cables, wherein at least one coating layer consists of a recyclable material which is halogen-free and has superior mechanical and electrical properties. This material consists of a polymer mixture comprising: (a) a crystalline propylene homopolymer or copolymer; and (b) an elastomeric copolymer of ethylene with at least one alpha-olefin having from 3 to 12 carbon atoms, and optionally with a diene; the said copolymer (b) being characterized by a 200% tension set value (measured at 20°C for 1 minute according to ASTM standard D 412) lower than 30%.
Patent CA-2246859-A1 (CA)
Inventor: MOTTIAR MOHAMED I
IPC: E03D1/14
Filed: 1998-10-06
Abstract: To save water, the MULTIflush Toilet combines the regular toilet and a urinal. To achieve this, the MULTIflush Toilet employs two separate ports for flushing. The water saving is achieved through strategic setting of the ports at different levels to minimize the amount of water used and still obtain optimum efficiency. This is done by using the upper port for a small limited flush for urine use and the lower port to get a larger heavier flush.
Patent CA-2246867-A1 (CA)
Inventor: THORNBERRY ROBERT JOSEPH JR
IPC: G06Q10/00
Filed: 1998-09-10
Abstract: An Internet service provider can improve Internet-like services to its customers by providing closely-controlled server computers and intelligent proxy servers under the control of a central control computer. The performance network provides access to information such as web sites through data networks operated and controlled by the Internet service provider. As the work load of the server increases, or as it might be unable to respond to requests for information by subscribers, the central control computer can allocate computation resources of other, less burdened machines to act as servers to those customers. The network also collects and aggregates customer information that can be made available to the providers of the server content.
Patent CA-2251120-A1 (CA)
Title: Extraluminal balloon dissection
Inventor: FOGARTY THOMAS J
IPC: A61B17/00
Filed: 1997-03-07
Abstract: The present invention provides a balloon dissection apparatus (71) and methods of use in which an elongate balloon (92) is utilized to dissect tissue along a region that follows a naturally existing path alongside a vessel or structure, such as an artery, a vein, a lymphatic vessel, the trachea, the esophagus, or even a nerve bundle.
Patent CA-2252213-A1 (CA)
Inventor: MARTIN ED
IPC: F24B1/18
Filed: 1998-10-29
Abstract: A combination portable gas barbecue and portable simulation fireplace includes a cooking vessel having imitation fireplace logs and a gas burner mounted on a liftout log grate. A window is mounted in the front of the cooking vessel to allow direct viewing of the imitation logs and flames and of the underside of the food being cooked. Air inlet and outlets cause convection currents to flow away from the viewing window and out side vents formed by gaps between an oversized hood and the cooking vessel. An air convection system is set up by providing an air inlet below the window and outlet air gaps between the hood and the cooking vessel. A deflector is provided over the viewing window to prevent grease drippings from soiling the window or falling into the air inlet.
Patent CA-2257568-A1 (CA)
Title: Powdered cosmetic compositions containing silicone elastomers
Inventor: DOBKOWSKI BRIAN JOHN
IPC: A61K8/00
Filed: 1997-06-10
Abstract: A cosmetic powder is provided which includes a cross linked non-emulsifying siloxane elastomer, a powdered inorganic material and a skin treatment agent. Inclusion of the elastomer allows for the coupling of water as well as water soluble salts into the cosmetic powder.
Patent CA-2259710-A1 (CA)
Inventor: O'DONNELL PATRICK
IPC: H02B1/46
Filed: 1999-01-20
Abstract: A  combined  enclosure  for  an  industry  standard electrical device, such as a switch or power receptacle, and a control device for controlling the electrical device, the control device  having  both  controlled  connectors  and  controlling connectors.   The combined enclosure comprises an electrical device  enclosure,  a  control  components  enclosure,  and  a dividing/mounting plate.   The electrical device enclosure an opening in the bottom defining two side ledges,  and the top having a first mounting element adjacent to the front opening for mounting  the  electrical  device  in  the  electrical  device enclosure.  The control components enclosure has a top opening with side walls bent over to form flanges along sides of the top opening and fits through the opening in the bottom of the electrical device enclosure so as to hang by the flanges from the side ledges.  The plate completes the electrical device enclosure and provides a second electrical device mounting element so that the  electrical  device  may not  be  mounted  in  the  combined enclosure unless the plate is installed.   An aperture in the plate  is  provided  for mounting  the  control  device  to  the underside of the plate so that the controlled connectors are accessible from the upper side of the plate and the controlling connectors are accessible from the underside of the plate.
Patent CA-2263629-A1 (CA)
Inventor: PREVOT GERARD
IPC: E05C1/06
Filed: 1999-03-17
Abstract: A return device (10) for an operating member engaged with a nut comprises a body (11) having on a front face arrangements which cooperate with complementary arrangements on the nut to convert rotation of the nut about its axis into longitudinal movement of the body. The ends of the body comprise respective pairs of branches (15, 16) forming forks extending in the longitudinal direction (D) of the body. The body (11) has a longitudinal opening (17) to accommodate a spring (18) open at both ends of the body (11) . The width (L) of the longitudinal opening (17) is greater than the distance (1) between the branches (15, 16) of the forks. The longitudinal opening (17) has at least one portion (17a) opening onto a rear face (19) of the body (11) and having the spring (18) passed through it. Uses include in a casing for a lock, espagnolette-lock or the like.
Patent CA-2264140-A1 (CA)
Inventor: BISCHOFF RAINER
IPC: A61K48/00
Filed: 1997-08-25
Abstract: The invention is related to a method for preparing an homogenous suspension of stable lipid-nucleic acid complexes or particles, comprising: a) combining one or more cationic lipids, one or more colipids, and one or more stabilizing additives to form a lipid suspension, b) combining the lipid suspension with a nucleic acid to form a complex or a particle, and optionally c) subjecting the complex or particle to a sizing procedure. It also concerns an homogenous suspension produced notably by the above method.
Patent CA-2264798-A1 (CA)
Title: Indazole derivatives and their use as inhibitors of phosphodiesterase (pde) type iv and the production of tumor necrosis factor (tnf)
Inventor: MARFAT ANTHONY
IPC: C07D401/06
Filed: 1997-08-25
Abstract: The invention relates to compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein R, R1, and R2, are as defined herein. The invention further relates to pharmaceutical compositions containing, and methods of using, the compounds of formula (I), or acceptable salts thereof, for the inhibition of phosphodiesterase (PDE) type IV or the production of tumor necrosis factor (TNF) in a mammal. The invention also relates to intermediates that are useful in the preparation of the compounds of formula (I).
Patent CA-2265235-A1 (CA)
Title: Multimedia backwashable filtration system
Inventor: YIU CHAU CHAU
IPC: B01D24/00
Filed: 1999-03-04
Abstract: A multimedia fluid treatment unit and rotatable valve are disclosed in which a plurality of discreet containers are removably stacked upon each other and contain various different and distinct water treating media. The rotatable valve is rotatable between either of three positions one of which is a service position for routing the water to be treated through the unit for treatment, a second of which is a rinse position for rinsing the media in the unit, and a third of which is a backwash position for backwashing and/or regenerating the media.
Patent CA-2265956-A1 (CA)
Title: Installing a fill limiting vent valve in a fuel tank
Inventor: BENJEY ROBERT P
IPC: B60K15/01
Filed: 1999-04-01
Abstract: A combination fuel tank rollover valve, float actuated fill vent shutoff and tank vapor pressure relief valve assembly in a common housing for assembly into a single access opening in the tank. A header containing the pressure relief valve is sealed over the tank access opening and has an extension member attached to the undersurface of the header with an extension neck extending through the access opening. An interchangeable vent float valve subassembly is attached to the end of the neck before attachment of the extension to the header and assembly on the tank. Tanks of different depth can be accommodated simply by using extension members having a correspondingly different length necks, while the float valve subassembly and header are interchangeable.
Patent CA-2266376-A1 (CA)
Title: 1h-pyrido¬3,4-b|indole-4-carboxamide derivatives, preparation and application thereof in therapeutics
Inventor: LEGALLOUDEC ODETTE
IPC: A61P25/08
Filed: 1997-10-03
Abstract: The invention concerns compounds of general formula (I) in which X represents hydrogen or an halogen or an alkyl, alkoxy, trifluoromethyl or phenylmethoxy group, R1 represents hydrogen or an alkyl, cyclopropyl or phenylmethyl group, R2 represents either an alkyl group optionally substituted, or a phenylalkyl group optionally substituted, or a cyclohexylmethyl group, or a thienylmethyl group, or a pyridinylmethyl group, or a phenyl group optionally substituted, or a pyridinyl group, or a 5-methyl-1,2-oxazolyl group, or a 5-methyl-1,3,4-thiadiazolylgroup, or a naphtalenyl group, R3 and R4 each represent hydrogen or an alkyl, 2-methoxyethyl, hydroxyalkyl, carboxyalkyl, alkoxycarbonylalkyl or phenylalkyl group, or form together, with the nitrogen atom which carries them, either a pyrrolidinyl group optionally substituted or a piperidinyl group, or a morpholinyl group, or a 4-methylpiperazinyl group, or an azetidinyl group, or a thiazolidinyl group, and the bond between the carbon atoms in positions 3 and 4 is simple or double. The invention is applicable in therapeutics.
Patent CA-2267929-A1 (CA)
Inventor: WONG ALFRED
IPC: A61P9/10
Filed: 1999-04-06
Abstract: An end product mixture substantially comprising saturated phytosterols is prepared from a raw material mixture of phytosterols derived from tall oil. At least a substantial portion of the raw material mixture consists of unsaturated phytosterols. The method includes the step of hydrogenating the raw material mixture in a solvent substantially comprising ethyl acetate while in the presence of a hydrogenation catalyst, then filtering and drying the hydrogenation product to separate the mixture of saturated phytosterols from the solvent and to leave an amount of solvent residue in the mixture that is not greater than a desired amount. Hydrogenation is carried out at a temperature greater than 35 deg. C., preferably 40 deg. C or higher, and at a pressure greater than standard pressure, preferably 20 psi or higher. The resulting mixture of saturated phytosterols may be used for various purposes including the manufacture of food additives or dietary supplements with a view to facilitating the reduction of serum cholesterol levels.
Patent CA-2269427-A1 (CA)
Title: Systeme de releve d'une forme tridimensionnelle, notamment d'une voute plantaire, et procede de realisation d'une chaussure ou d'une semelle orthopedique mettant en oeuvre le systeme
Inventor: REBIERE CHRISTIAN
IPC: A61B5/107
Filed: 1999-04-19
Abstract: L'invention concerne un système (7) de relevé d'une forme d'un objet tridimensionnel (2), notamment d'une voûte plantaire. Il comprend un dispositif palpeur (1) à aiguilles ( 3 ) . La voûte plantaire repose sur les extrémités supérieures (300) des aiguilles (3), de maniére à les repousser vers le bas. L'ensemble des extrémités inférieures (301) définit une surface (S A) répliquant la forme de voûte plantaire. On associe des ressorts tarés aux aiguilles (3) pour maîtriser leur enfoncement. Un dispositif (5) à capteur optique (50) génère un faisceau laser lamellaire (F l) balayant des extrémités inférieures (301). Deux caméras (52, 53) analysent la trace du faisceau (F l) et délivrent des signaux de sortie (V S) représentant les coordonnées des secondes extrémités (301) de tiges (3). L'ensemble est couplé à un calculateur à programme enregistré (8) et à un système d'exploitation des données acquises à commande numérique. Dans d'autres modes de réalisation, l'acquisition de forme est réalisée, soit par un procédé photographique mettant en oeuvre un appareil numérique, soit par un procédé télémétrique, optique ou magnétique.
Patent CA-2271664-A1 (CA)
Title: Androgenic and bisphosphonic agents coadministered to treat diseases
Inventor: HARADA SHUN-ICHI
IPC: A61K31/66
Filed: 1997-11-21
Abstract: The inhibition of natural bone formation experienced in the prophylaxis and/or treatment of bone resorption disease with a bisphosphonic acid or a pharmaceutically acceptable salt thereof is overcome by the concommitant administration of an androgenic agent.
Patent CA-2272550-A1 (CA)
Title: Pivotless mechanical crop harvester
Inventor: SCOTT PHILLIP RAY
IPC: A01D46/28
Filed: 1997-11-13
Abstract: A self-propelled mechanical harvester for harvesting above ground crops includes a shaker assembly (22) that operates in a single plane. The shaker will oscillate from side to side in the plane without pivoting of the plane around a pivot point. The assembly includes crop contacting rods (40) in one embodiment and crop contacting striker bans (36) in another embodiment. The force used to impart the oscillatory motion to the shaker is supplied by a force balance shaker using two weights (70, 72a, 72b) operating at the same frequency of rotation in opposite directions. The weights are timed and maintained in time by a geared relationship to produce maximum force laterally outboard and no force in a direction corresponding to the machine's direction of travel.